from __future__ import annotations

from typing import Any

from pydantic import BaseModel, Field


REPOSITORY_EXAMPLE = {
    "id": 1,
    "name": "MailRouter",
    "url": "https://github.com/example/mail-router.git",
    "description": "Routes incoming customer email.",
    "branch": "main",
    "status": "indexed",
}

ANALYSIS_RUN_EXAMPLE = {
    "id": 1,
    "repository_id": 1,
    "snapshot_id": 1,
    "status": "completed",
    "started_at": "2026-04-26T09:00:00Z",
    "completed_at": "2026-04-26T09:00:03Z",
    "error_message": None,
    "scanner_version": "deterministic-v1",
}

SOURCE_REFERENCE_EXAMPLE = {
    "fact_id": 12,
    "path": "src/routes/classify_email.py",
    "kind": "api_route",
    "name": "POST /api/classify-email",
    "line": 42,
}


class ErrorResponse(BaseModel):
    detail: str

    model_config = {
        "json_schema_extra": {
            "examples": [
                {"detail": "repository 999 was not found"},
                {"detail": "target candidate must be different from source"},
            ]
        }
    }


class RepositoryCreate(BaseModel):
    url: str
    name: str | None = None
    description: str | None = None
    branch: str = "main"
    access_username: str | None = None
    access_password: str | None = Field(default=None, repr=False)

    model_config = {
        "json_schema_extra": {
            "examples": [
                {
                    "url": "https://github.com/example/repository.git",
                    "name": "Example Repository",
                    "description": "Optional human-readable repository summary.",
                    "branch": "main",
                    "access_username": None,
                    "access_password": None,
                }
            ]
        }
    }


class RepositoryUpdate(BaseModel):
    name: str | None = None
    description: str | None = None
    branch: str | None = None

    model_config = {
        "json_schema_extra": {
            "examples": [
                {
                    "name": "Renamed Repository",
                    "description": "Updated curator-facing summary.",
                    "branch": "main",
                }
            ]
        }
    }


class AbilityCreate(BaseModel):
    name: str
    description: str = ""
    confidence: float = Field(default=1.0, ge=0.0, le=1.0)

    model_config = {
        "json_schema_extra": {
            "examples": [
                {
                    "name": "Business Email Routing",
                    "description": "Route inbound messages to the right team.",
                    "confidence": 0.92,
                }
            ]
        }
    }


class AbilityUpdate(BaseModel):
    name: str | None = None
    description: str | None = None
    confidence: float | None = Field(default=None, ge=0.0, le=1.0)


class CapabilityCreate(BaseModel):
    ability_id: int
    name: str
    description: str = ""
    inputs: list[str] = Field(default_factory=list)
    outputs: list[str] = Field(default_factory=list)
    confidence: float = Field(default=1.0, ge=0.0, le=1.0)

    model_config = {
        "json_schema_extra": {
            "examples": [
                {
                    "ability_id": 1,
                    "name": "Classify Incoming Email",
                    "description": "Classify messages by intent.",
                    "inputs": ["subject", "body"],
                    "outputs": ["intent", "confidence"],
                    "confidence": 0.88,
                }
            ]
        }
    }


class CapabilityUpdate(BaseModel):
    name: str | None = None
    description: str | None = None
    inputs: list[str] | None = None
    outputs: list[str] | None = None
    confidence: float | None = Field(default=None, ge=0.0, le=1.0)


class FeatureCreate(BaseModel):
    capability_id: int
    name: str
    type: str
    location: str = ""
    confidence: float = Field(default=1.0, ge=0.0, le=1.0)

    model_config = {
        "json_schema_extra": {
            "examples": [
                {
                    "capability_id": 1,
                    "name": "POST /api/classify-email",
                    "type": "REST endpoint",
                    "location": "src/routes/classify_email.py",
                    "confidence": 0.84,
                }
            ]
        }
    }


class FeatureUpdate(BaseModel):
    name: str | None = None
    type: str | None = None
    location: str | None = None
    confidence: float | None = Field(default=None, ge=0.0, le=1.0)


class EvidenceCreate(BaseModel):
    capability_id: int
    type: str
    reference: str
    strength: str = "medium"
    target_kind: str = "capability"
    target_id: int | None = None
    reference_kind: str = "source"
    reference_id: int | None = None

    model_config = {
        "json_schema_extra": {
            "examples": [
                {
                    "capability_id": 1,
                    "type": "unit_test",
                    "reference": "tests/test_email_classification.py",
                    "strength": "strong",
                    "target_kind": "capability",
                    "reference_kind": "source",
                }
            ]
        }
    }


class EvidenceUpdate(BaseModel):
    type: str | None = None
    reference: str | None = None
    strength: str | None = None
    target_kind: str | None = None
    target_id: int | None = None
    reference_kind: str | None = None
    reference_id: int | None = None


class AnalysisRunCreate(BaseModel):
    source_path: str | None = None
    use_cached_checkout: bool = False
    use_llm_assistance: bool = True
    trusted_auto_approve: bool = False
    access_username: str | None = None
    access_password: str | None = Field(default=None, repr=False)

    model_config = {
        "json_schema_extra": {
            "examples": [
                {},
                {"source_path": "/path/to/local/repository"},
                {"use_cached_checkout": True},
                {"use_llm_assistance": False},
                {"trusted_auto_approve": True},
                {
                    "access_username": "git-user",
                    "access_password": "access-token",
                },
            ]
        }
    }


class ExpectationGapCreate(BaseModel):
    analysis_run_id: int | None = None
    expected_type: str
    expected_name: str
    source: str = "human"
    notes: str = ""

    model_config = {
        "json_schema_extra": {
            "examples": [
                {
                    "analysis_run_id": 1,
                    "expected_type": "capability",
                    "expected_name": "Use OpenRouter Models",
                    "source": "human",
                    "notes": "Expected from README/provider config but absent from candidates.",
                }
            ]
        }
    }


class ExpectationGapResponse(BaseModel):
    id: int
    repository_id: int
    analysis_run_id: int | None
    expected_type: str
    expected_name: str
    source: str
    notes: str
    status: str
    created_at: str


class CandidateGraphApproval(BaseModel):
    notes: str = ""

    model_config = {
        "json_schema_extra": {
            "examples": [{"notes": "Approved after curator review."}]
        }
    }


class AnalysisRunChangeApproval(BaseModel):
    notes: str = ""

    model_config = {
        "json_schema_extra": {
            "examples": [{"notes": "Accept target run changes after review."}]
        }
    }


class CandidateRejection(BaseModel):
    notes: str = ""

    model_config = {
        "json_schema_extra": {
            "examples": [{"notes": "Rejected because the claim is too generic."}]
        }
    }


class CandidateEdit(BaseModel):
    name: str
    description: str = ""
    confidence: float = Field(default=0.5, ge=0.0, le=1.0)
    notes: str = ""

    model_config = {
        "json_schema_extra": {
            "examples": [
                {
                    "name": "Service Health Monitoring",
                    "description": "Expose health state for operational checks.",
                    "confidence": 0.9,
                    "notes": "Renamed from generated review seed.",
                }
            ]
        }
    }


class CandidateCapabilityRelink(BaseModel):
    target_ability_id: int
    notes: str = ""

    model_config = {
        "json_schema_extra": {
            "examples": [
                {"target_ability_id": 2, "notes": "Move under operational ability."}
            ]
        }
    }


class CandidateLeafRelink(BaseModel):
    target_capability_id: int
    notes: str = ""

    model_config = {
        "json_schema_extra": {
            "examples": [
                {
                    "target_capability_id": 3,
                    "notes": "Evidence supports a different capability.",
                }
            ]
        }
    }


class CandidateAbilityMerge(BaseModel):
    target_ability_id: int
    notes: str = ""

    model_config = {
        "json_schema_extra": {
            "examples": [
                {"target_ability_id": 2, "notes": "Duplicate ability wording."}
            ]
        }
    }


class CandidateCapabilityMerge(BaseModel):
    target_capability_id: int
    notes: str = ""

    model_config = {
        "json_schema_extra": {
            "examples": [
                {"target_capability_id": 3, "notes": "Duplicate capability."}
            ]
        }
    }


class CandidateFeatureMerge(BaseModel):
    target_feature_id: int
    notes: str = ""

    model_config = {
        "json_schema_extra": {
            "examples": [{"target_feature_id": 4, "notes": "Duplicate route."}]
        }
    }


class CandidateEvidenceMerge(BaseModel):
    target_evidence_id: int
    notes: str = ""

    model_config = {
        "json_schema_extra": {
            "examples": [{"target_evidence_id": 5, "notes": "Duplicate evidence."}]
        }
    }


class RepositoryResponse(BaseModel):
    id: int
    name: str
    url: str
    description: str | None
    branch: str
    status: str

    model_config = {
        "json_schema_extra": {
            "examples": [REPOSITORY_EXAMPLE],
        }
    }


class RepositorySnapshotResponse(BaseModel):
    id: int
    repository_id: int
    commit_hash: str
    branch: str
    source_path: str
    file_count: int


class AnalysisRunResponse(BaseModel):
    id: int
    repository_id: int
    snapshot_id: int | None
    status: str
    started_at: str
    completed_at: str | None
    error_message: str | None
    scanner_version: str


class ReviewDecisionResponse(BaseModel):
    id: int
    repository_id: int
    analysis_run_id: int | None
    action: str
    notes: str
    created_at: str


class ObservedFactResponse(BaseModel):
    id: int
    repository_id: int
    analysis_run_id: int
    snapshot_id: int | None
    kind: str
    path: str
    name: str
    value: str
    metadata: dict[str, Any]


class ContentChunkResponse(BaseModel):
    id: int
    repository_id: int
    analysis_run_id: int
    snapshot_id: int | None
    path: str
    kind: str
    start_line: int
    end_line: int
    text: str


class ScanSummaryResponse(BaseModel):
    analysis_run: AnalysisRunResponse
    snapshot: RepositorySnapshotResponse | None
    facts: list[ObservedFactResponse]


class SourceReferenceResponse(BaseModel):
    fact_id: int | None
    path: str
    kind: str
    name: str
    line: int | None = None


class CandidateEvidenceResponse(BaseModel):
    id: int
    type: str
    reference: str
    strength: str
    status: str
    source_refs: list[SourceReferenceResponse]
    target_kind: str = "capability"
    target_id: int | None = None
    reference_kind: str = "source"
    reference_id: int | None = None


class CandidateFeatureResponse(BaseModel):
    id: int
    name: str
    type: str
    location: str
    confidence: float
    status: str
    source_refs: list[SourceReferenceResponse]
    confidence_label: str


class CandidateCapabilityResponse(BaseModel):
    id: int
    name: str
    description: str
    inputs: list[str]
    outputs: list[str]
    confidence: float
    status: str
    source_refs: list[SourceReferenceResponse]
    confidence_label: str
    features: list[CandidateFeatureResponse]
    evidence: list[CandidateEvidenceResponse]


class CandidateAbilityResponse(BaseModel):
    id: int
    name: str
    description: str
    confidence: float
    status: str
    source_refs: list[SourceReferenceResponse]
    confidence_label: str
    capabilities: list[CandidateCapabilityResponse]


class CandidateGraphResponse(BaseModel):
    repository: RepositoryResponse
    analysis_run: AnalysisRunResponse
    abilities: list[CandidateAbilityResponse]

    model_config = {
        "json_schema_extra": {
            "examples": [
                {
                    "repository": {
                        **REPOSITORY_EXAMPLE,
                        "status": "reviewing",
                    },
                    "analysis_run": ANALYSIS_RUN_EXAMPLE,
                    "abilities": [
                        {
                            "id": 1,
                            "name": "Business Email Routing",
                            "description": "Route inbound messages to the right team.",
                            "confidence": 0.82,
                            "confidence_label": "high",
                            "status": "pending",
                            "source_refs": [SOURCE_REFERENCE_EXAMPLE],
                            "capabilities": [
                                {
                                    "id": 1,
                                    "name": "Classify Incoming Email",
                                    "description": "Classify messages by intent.",
                                    "inputs": ["subject", "body"],
                                    "outputs": ["intent", "confidence"],
                                    "confidence": 0.78,
                                    "confidence_label": "medium",
                                    "status": "pending",
                                    "source_refs": [SOURCE_REFERENCE_EXAMPLE],
                                    "features": [
                                        {
                                            "id": 1,
                                            "name": "POST /api/classify-email",
                                            "type": "REST endpoint",
                                            "location": "src/routes/classify_email.py",
                                            "confidence": 0.84,
                                            "confidence_label": "high",
                                            "status": "pending",
                                            "source_refs": [SOURCE_REFERENCE_EXAMPLE],
                                        }
                                    ],
                                    "evidence": [
                                        {
                                            "id": 1,
                                            "type": "unit_test",
                                            "reference": "tests/test_email_classification.py",
                                            "strength": "strong",
                                            "status": "pending",
                                            "source_refs": [SOURCE_REFERENCE_EXAMPLE],
                                        }
                                    ],
                                }
                            ],
                        }
                    ],
                }
            ]
        }
    }


class AnalysisRunDiffItemResponse(BaseModel):
    change_type: str
    item_type: str
    key: str
    base: dict[str, Any] | None = None
    target: dict[str, Any] | None = None


class AnalysisRunDiffSectionResponse(BaseModel):
    added: list[AnalysisRunDiffItemResponse]
    removed: list[AnalysisRunDiffItemResponse]
    changed: list[AnalysisRunDiffItemResponse]
    weakened: list[AnalysisRunDiffItemResponse]


class AnalysisRunDiffResponse(BaseModel):
    repository: RepositoryResponse
    base_run: AnalysisRunResponse
    target_run: AnalysisRunResponse
    facts: AnalysisRunDiffSectionResponse
    chunks: AnalysisRunDiffSectionResponse
    candidates: AnalysisRunDiffSectionResponse
    approved_entries: AnalysisRunDiffSectionResponse

    model_config = {
        "json_schema_extra": {
            "examples": [
                {
                    "repository": REPOSITORY_EXAMPLE,
                    "base_run": {**ANALYSIS_RUN_EXAMPLE, "id": 1},
                    "target_run": {**ANALYSIS_RUN_EXAMPLE, "id": 2},
                    "facts": {
                        "added": [
                            {
                                "change_type": "added",
                                "item_type": "fact",
                                "key": "api_route:src/routes/status.py:GET /status",
                                "target": {
                                    "kind": "api_route",
                                    "path": "src/routes/status.py",
                                    "name": "GET /status",
                                },
                            }
                        ],
                        "removed": [],
                        "changed": [],
                        "weakened": [],
                    },
                    "chunks": {
                        "added": [],
                        "removed": [],
                        "changed": [],
                        "weakened": [],
                    },
                    "candidates": {
                        "added": [],
                        "removed": [],
                        "changed": [],
                        "weakened": [
                            {
                                "change_type": "weakened",
                                "item_type": "capability",
                                "key": "classify incoming email",
                                "base": {"confidence": 0.9},
                                "target": {"confidence": 0.62},
                            }
                        ],
                    },
                    "approved_entries": {
                        "added": [],
                        "removed": [],
                        "changed": [],
                        "weakened": [],
                    },
                }
            ]
        }
    }


class EvidenceResponse(BaseModel):
    id: int
    type: str
    reference: str
    strength: str
    source_refs: list[SourceReferenceResponse]
    target_kind: str = "capability"
    target_id: int | None = None
    reference_kind: str = "source"
    reference_id: int | None = None


class FeatureResponse(BaseModel):
    id: int
    name: str
    type: str
    location: str
    confidence: float
    confidence_label: str
    source_refs: list[SourceReferenceResponse]


class CapabilityResponse(BaseModel):
    id: int
    name: str
    description: str
    inputs: list[str]
    outputs: list[str]
    confidence: float
    confidence_label: str
    features: list[FeatureResponse]
    evidence: list[EvidenceResponse]


class AbilityResponse(BaseModel):
    id: int
    name: str
    description: str
    confidence: float
    confidence_label: str
    capabilities: list[CapabilityResponse]


class RepositoryAbilityMapResponse(BaseModel):
    repository: RepositoryResponse
    abilities: list[AbilityResponse]

    model_config = {
        "json_schema_extra": {
            "examples": [
                {
                    "repository": REPOSITORY_EXAMPLE,
                    "abilities": [
                        {
                            "id": 1,
                            "name": "Business Email Routing",
                            "description": "Route inbound messages to the right team.",
                            "confidence": 0.92,
                            "confidence_label": "high",
                            "capabilities": [
                                {
                                    "id": 1,
                                    "name": "Classify Incoming Email",
                                    "description": "Classify messages by intent.",
                                    "inputs": ["subject", "body"],
                                    "outputs": ["intent", "confidence"],
                                    "confidence": 0.88,
                                    "confidence_label": "high",
                                    "features": [
                                        {
                                            "id": 1,
                                            "name": "POST /api/classify-email",
                                            "type": "REST endpoint",
                                            "location": "src/routes/classify_email.py",
                                            "confidence": 0.84,
                                            "confidence_label": "high",
                                            "source_refs": [SOURCE_REFERENCE_EXAMPLE],
                                        }
                                    ],
                                    "evidence": [
                                        {
                                            "id": 1,
                                            "type": "unit_test",
                                            "reference": "tests/test_email_classification.py",
                                            "strength": "strong",
                                            "source_refs": [SOURCE_REFERENCE_EXAMPLE],
                                        }
                                    ],
                                }
                            ],
                        }
                    ],
                }
            ]
        }
    }


class IdResponse(BaseModel):
    id: int


class SearchResultResponse(BaseModel):
    repository_id: int
    repository_name: str
    match_type: str
    match_name: str
    confidence: float
    confidence_label: str
    match_description: str
    matched_field: str
    ability_id: int | None = None
    ability_name: str | None = None
    capability_id: int | None = None
    capability_name: str | None = None
    evidence_level: str | None = None
    source_reference: str | None = None
    text_score: float = 0.0
    vector_score: float = 0.0
    hybrid_score: float = 0.0

    model_config = {
        "json_schema_extra": {
            "examples": [
                {
                    "repository_id": 1,
                    "repository_name": "MailRouter",
                    "match_type": "capability",
                    "match_name": "Classify Incoming Email",
                    "confidence": 0.88,
                    "confidence_label": "high",
                    "match_description": "Classify messages by intent.",
                    "matched_field": "capability.description",
                    "ability_id": 1,
                    "ability_name": "Business Email Routing",
                    "capability_id": 1,
                    "capability_name": "Classify Incoming Email",
                    "evidence_level": None,
                    "source_reference": None,
                    "text_score": 1.0,
                    "vector_score": 0.0,
                    "hybrid_score": 0.88,
                }
            ]
        }
    }


class AbilitySummaryResponse(BaseModel):
    id: int
    repository_id: int
    repository_name: str
    name: str
    description: str
    confidence: float
    confidence_label: str


class CapabilitySummaryResponse(BaseModel):
    id: int
    repository_id: int
    repository_name: str
    ability_id: int
    ability_name: str
    name: str
    description: str
    confidence: float
    confidence_label: str


class CapabilityGapRequest(BaseModel):
    desired_ability: str
    desired_capabilities: list[str]
    repository_ids: list[int] | None = None

    model_config = {
        "json_schema_extra": {
            "examples": [
                {
                    "desired_ability": "Business Email Routing",
                    "desired_capabilities": [
                        "Classify Incoming Email",
                        "Route Email to Team",
                    ],
                    "repository_ids": [1, 2],
                }
            ]
        }
    }


class ComparedCapabilityResponse(BaseModel):
    name: str
    confidence: float
    confidence_label: str
    evidence_count: int


class ComparedAbilityRepositoryResponse(BaseModel):
    repository_id: int
    repository_name: str
    confidence: float
    confidence_label: str
    capabilities: list[ComparedCapabilityResponse]


class ComparedAbilityResponse(BaseModel):
    name: str
    repositories: list[ComparedAbilityRepositoryResponse]


class UniqueCapabilityResponse(BaseModel):
    repository_id: int
    repository_name: str
    ability_name: str
    capability_name: str


class RepositoryComparisonResponse(BaseModel):
    repositories: list[RepositoryResponse]
    abilities: list[ComparedAbilityResponse]
    unique_capabilities: list[UniqueCapabilityResponse]

    model_config = {
        "json_schema_extra": {
            "examples": [
                {
                    "repositories": [
                        REPOSITORY_EXAMPLE,
                        {**REPOSITORY_EXAMPLE, "id": 2, "name": "InboxWorker"},
                    ],
                    "abilities": [
                        {
                            "name": "Business Email Routing",
                            "repositories": [
                                {
                                    "repository_id": 1,
                                    "repository_name": "MailRouter",
                                    "confidence": 0.92,
                                    "confidence_label": "high",
                                    "capabilities": [
                                        {
                                            "name": "Classify Incoming Email",
                                            "confidence": 0.88,
                                            "confidence_label": "high",
                                            "evidence_count": 2,
                                        }
                                    ],
                                }
                            ],
                        }
                    ],
                    "unique_capabilities": [
                        {
                            "repository_id": 1,
                            "repository_name": "MailRouter",
                            "ability_name": "Business Email Routing",
                            "capability_name": "Classify Incoming Email",
                        }
                    ],
                }
            ]
        }
    }


class CapabilityGapMatchResponse(BaseModel):
    capability: str
    repositories: list[str]


class WeakCapabilityEvidenceResponse(BaseModel):
    capability: str
    repository_id: int
    repository_name: str
    evidence_count: int
    strongest_evidence: str | None = None
    confidence: float
    confidence_label: str


class DuplicateCapabilityResponse(BaseModel):
    capability: str
    repositories: list[str]


class CapabilityGapResponse(BaseModel):
    desired_ability: str
    matched_capabilities: list[CapabilityGapMatchResponse]
    missing_capabilities: list[str]
    weakly_evidenced_capabilities: list[WeakCapabilityEvidenceResponse]
    duplicate_capabilities: list[DuplicateCapabilityResponse]

    model_config = {
        "json_schema_extra": {
            "examples": [
                {
                    "desired_ability": "Business Email Routing",
                    "matched_capabilities": [
                        {
                            "capability": "Classify Incoming Email",
                            "repositories": ["MailRouter"],
                        }
                    ],
                    "missing_capabilities": ["Route Email to Team"],
                    "weakly_evidenced_capabilities": [
                        {
                            "capability": "Classify Incoming Email",
                            "repository_id": 1,
                            "repository_name": "MailRouter",
                            "evidence_count": 0,
                            "strongest_evidence": None,
                            "confidence": 0.62,
                            "confidence_label": "medium",
                        }
                    ],
                    "duplicate_capabilities": [
                        {
                            "capability": "Classify Incoming Email",
                            "repositories": ["MailRouter", "InboxWorker"],
                        }
                    ],
                }
            ]
        }
    }