# ==============================================================================
# ChronoGrid P2P - Agent Verification Pipeline v2
# Runs compilation, test, and specification alignment checks across all crates.
# Exit code 0 = all checks passed. Non-zero = failure.
# ==============================================================================

$ErrorActionPreference = "Continue"
$RootDir = "$PSScriptRoot\.."
$StartTime = Get-Date
$FailCount = 0

# Locate Perl — required by openssl-sys build script (bundled-sqlcipher-vendored-openssl)
if (-not (Get-Command perl -ErrorAction SilentlyContinue)) {
    $PerlCandidates = @(
        "C:\Strawberry\perl\bin",
        "C:\Perl\bin",
        "C:\Program Files\Git\usr\bin",
        "C:\Program Files (x86)\Git\usr\bin"
    )
    foreach ($perlDir in $PerlCandidates) {
        if (Test-Path "$perlDir\perl.exe") {
            $env:PATH = "$perlDir;$env:PATH"
            Write-Host "  INFO: Found perl at $perlDir\perl.exe" -ForegroundColor Yellow
            break
        }
    }
    if (-not (Get-Command perl -ErrorAction SilentlyContinue)) {
        Write-Host "  WARN: perl not found - openssl-sys (chronogrid_core/ffi) builds may fail." -ForegroundColor Yellow
    }
}

# Locate cargo — try common install locations if not already on PATH
$CargoExe = "cargo"
if (-not (Get-Command cargo -ErrorAction SilentlyContinue)) {
    $CandidatePaths = @(
        "$env:USERPROFILE\.cargo\bin\cargo.exe",
        "C:\Users\$env:USERNAME\.cargo\bin\cargo.exe",
        "D:\Users\$env:USERNAME\.cargo\bin\cargo.exe",
        "$env:LOCALAPPDATA\Programs\Rust\bin\cargo.exe",
        "C:\Users\mtkel\.cargo\bin\cargo.exe"
    )
    foreach ($candidate in $CandidatePaths) {
        if (Test-Path $candidate) {
            $CargoExe = $candidate
            $env:PATH = "$([System.IO.Path]::GetDirectoryName($candidate));$env:PATH"
            Write-Host "  INFO: Found cargo at $candidate" -ForegroundColor Yellow
            break
        }
    }
    if ($CargoExe -eq "cargo") {
        Write-Host "  WARN: cargo not found on PATH or common locations. Rust checks will be skipped." -ForegroundColor Yellow
        Write-Host "        Run this script from a terminal where 'cargo' is available." -ForegroundColor Yellow
    }
}

function Write-Step {
    param([string]$Message)
    $elapsed = [int]((Get-Date) - $StartTime).TotalSeconds
    Write-Host "`n[${elapsed}s] $Message" -ForegroundColor Cyan
}

function Write-Pass {
    param([string]$Message)
    Write-Host "  PASS: $Message" -ForegroundColor Green
}

function Write-Fail {
    param([string]$Message)
    Write-Host "  FAIL: $Message" -ForegroundColor Red
    $script:FailCount++
}

Write-Host "============================================================" -ForegroundColor Cyan
Write-Host "  CHRONOGRID P2P - AGENT VERIFICATION PIPELINE v2" -ForegroundColor Cyan
Write-Host "  $(Get-Date -Format 'yyyy-MM-dd HH:mm:ss')" -ForegroundColor Cyan
Write-Host "============================================================" -ForegroundColor Cyan

# --- 1. chronogrid_crypto ---
Write-Step "1. Checking chronogrid_crypto (compile + tests)..."
Set-Location "$RootDir\crates\chronogrid_crypto"

cargo check --quiet 2>&1
if ($LASTEXITCODE -ne 0) { Write-Fail "chronogrid_crypto failed cargo check" }
else { Write-Pass "chronogrid_crypto compiles" }

cargo test --quiet 2>&1
if ($LASTEXITCODE -ne 0) { Write-Fail "chronogrid_crypto tests failed" }
else { Write-Pass "chronogrid_crypto tests pass" }

# --- 2. chronogrid_core ---
Write-Step "2. Checking chronogrid_core (compile + tests)..."
Set-Location "$RootDir\crates\chronogrid_core"

cargo check --quiet 2>&1
if ($LASTEXITCODE -ne 0) { Write-Fail "chronogrid_core failed cargo check" }
else { Write-Pass "chronogrid_core compiles" }

cargo test --quiet 2>&1
if ($LASTEXITCODE -ne 0) { Write-Fail "chronogrid_core tests failed" }
else { Write-Pass "chronogrid_core tests pass" }

# --- 3. chronogrid_net ---
Write-Step "3. Checking chronogrid_net (compile + tests)..."
Set-Location "$RootDir\crates\chronogrid_net"

cargo check --quiet 2>&1
if ($LASTEXITCODE -ne 0) { Write-Fail "chronogrid_net failed cargo check" }
else { Write-Pass "chronogrid_net compiles" }

cargo test --quiet 2>&1
if ($LASTEXITCODE -ne 0) { Write-Fail "chronogrid_net tests failed" }
else { Write-Pass "chronogrid_net tests pass" }

# --- 4. chronogrid_ai ---
Write-Step "4. Checking chronogrid_ai (compile + tests)..."
Set-Location "$RootDir\crates\chronogrid_ai"

cargo check --quiet 2>&1
if ($LASTEXITCODE -ne 0) { Write-Fail "chronogrid_ai failed cargo check" }
else { Write-Pass "chronogrid_ai compiles" }

cargo test --quiet 2>&1
if ($LASTEXITCODE -ne 0) { Write-Fail "chronogrid_ai tests failed" }
else { Write-Pass "chronogrid_ai tests pass" }

# --- 5. chronogrid_ffi ---
Write-Step "5. Checking chronogrid_ffi (compile + tests)..."
Set-Location "$RootDir\crates\chronogrid_ffi"

cargo check --quiet 2>&1
if ($LASTEXITCODE -ne 0) { Write-Fail "chronogrid_ffi failed cargo check" }
else { Write-Pass "chronogrid_ffi compiles" }

cargo test --quiet 2>&1
if ($LASTEXITCODE -ne 0) { Write-Fail "chronogrid_ffi tests failed" }
else { Write-Pass "chronogrid_ffi tests pass" }

# --- 6. chronogrid_daemon (if scaffolded) ---
Write-Step "6. Checking chronogrid_daemon (if scaffolded)..."
$DaemonCargoToml = "$RootDir\apps\chronogrid_daemon\Cargo.toml"
if (Test-Path $DaemonCargoToml) {
    Set-Location "$RootDir\apps\chronogrid_daemon"
    cargo check --quiet 2>&1
    if ($LASTEXITCODE -ne 0) { Write-Fail "chronogrid_daemon failed cargo check" }
    else { Write-Pass "chronogrid_daemon compiles" }
} else {
    Write-Host "  SKIP: chronogrid_daemon not yet scaffolded (Task 2.7)" -ForegroundColor Yellow
}

# --- 7. Schema Validation ---
Write-Step "7. Validating schema.sql contains required tables..."
$SchemaPath = "$RootDir\docs\API_CONTRACTS\schema.sql"
$SchemaContent = Get-Content $SchemaPath -Raw

$RequiredTables = @(
    "namespaces",
    "projects",
    "tasks",
    "notes",
    "task_note_links",
    "ingestion_logs",
    "crdt_docs"
)

$Phase2Tables = @(
    "time_blocks",
    "attachments",
    "calendar_feeds",
    "node_peers",
    "automation_rules",
    "ingestion_configs"
)

foreach ($table in $RequiredTables) {
    if ($SchemaContent -match "CREATE TABLE IF NOT EXISTS $table") {
        Write-Pass "Schema contains table: $table"
    } else {
        Write-Fail "Schema MISSING required table: $table"
    }
}

$Phase2Count = 0
foreach ($table in $Phase2Tables) {
    if ($SchemaContent -match "CREATE TABLE IF NOT EXISTS $table") {
        $Phase2Count++
        Write-Pass "Schema contains Phase 2 table: $table"
    } else {
        Write-Host "  INFO: Phase 2 table not yet added: $table" -ForegroundColor Yellow
    }
}

if ($Phase2Count -eq $Phase2Tables.Count) {
    Write-Pass "All Phase 2 schema tables present ($Phase2Count/$($Phase2Tables.Count))"
} else {
    Write-Host "  INFO: $Phase2Count/$($Phase2Tables.Count) Phase 2 tables present (add remaining in Task 2.1)" -ForegroundColor Yellow
}

# --- 8. Flutter Analysis ---
Write-Step "8. Checking Flutter shell (analyze)..."
$FlutterDir = "$RootDir\apps\chronogrid_flutter"
if (Test-Path "$FlutterDir\pubspec.yaml") {
    Set-Location $FlutterDir
    flutter analyze --no-pub 2>&1
    if ($LASTEXITCODE -ne 0) {
        Write-Fail "Flutter analysis errors detected"
    } else {
        Write-Pass "Flutter analysis clean"
    }
} else {
    Write-Fail "Flutter pubspec.yaml not found at $FlutterDir"
}

# --- 9. FRB Codegen Output Check ---
Write-Step "9. Checking FRB codegen output (if generated)..."
$FrbGenerated = "$RootDir\crates\chronogrid_ffi\src\frb_generated.rs"
$DartGenerated = "$RootDir\apps\chronogrid_flutter\lib\src\rust\frb_generated.dart"

if (Test-Path $FrbGenerated) {
    Write-Pass "FRB Rust generated file exists"
} else {
    Write-Host "  INFO: frb_generated.rs not yet generated (run: flutter_rust_bridge_codegen generate)" -ForegroundColor Yellow
}

if (Test-Path $DartGenerated) {
    Write-Pass "FRB Dart generated file exists"
} else {
    Write-Host "  INFO: frb_generated.dart not yet generated (run: flutter_rust_bridge_codegen generate)" -ForegroundColor Yellow
}

# --- 10. DECISION_LOG.md Check ---
Write-Step "10. Checking DECISION_LOG.md is present and non-empty..."
$DecisionLog = "$RootDir\DECISION_LOG.md"
if (Test-Path $DecisionLog) {
    $LogSize = (Get-Item $DecisionLog).Length
    if ($LogSize -gt 500) {
        Write-Pass "DECISION_LOG.md present ($LogSize bytes)"
    } else {
        Write-Fail "DECISION_LOG.md is suspiciously small ($LogSize bytes) - may be empty"
    }
} else {
    Write-Fail "DECISION_LOG.md not found"
}

# --- Summary ---
$Elapsed = [int]((Get-Date) - $StartTime).TotalSeconds
Write-Host "`n============================================================" -ForegroundColor Cyan

if ($FailCount -eq 0) {
    Write-Host "  ALL VERIFICATION CHECKS PASSED ($Elapsed seconds)" -ForegroundColor Green
    Write-Host "============================================================" -ForegroundColor Cyan
    Exit 0
} else {
    Write-Host "  $FailCount CHECK(S) FAILED ($Elapsed seconds)" -ForegroundColor Red
    Write-Host "  Fix all failures before committing." -ForegroundColor Red
    Write-Host "============================================================" -ForegroundColor Cyan
    Exit 1
}